Heterotopic expression of respiratory-associated genes suggests a developmental basis for pleopodal gill evolution in isopod crustaceans
Background The evolution of organs in new anatomical positions contributes to morphological diversity and offers opportunities to examine developmental evolution. Crustacean gills provide a useful comparison: isopods bear pleopodal gills on abdominal appendages, whereas many other crustaceans possess thoracic epipodal gills. Here, we combined comparative anatomy and multiplex in situ…
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